#coding:utf-8
class student:
    def __init__(self,chinese,math,english,pe):
        self.chinese = chinese
        self.math =math
        self.english =english
        self.pe = pe


    def get_chinese(self):
        return self.chinese
    def get_math(self):
        return self.math
    def get_english(self):
        return self.english
    def get_pe(self):
        return self.pe
    def get_total(self):
        return (self.chinese+self.math+self.english+self.pe)
    def get_average(self):
        return self.get_total()/3